Chronograph 6139-6040
c. 1972–c. 1976
Years estimated from 2 dated marketplace listings; seller-stated, unverified.
Variants
No variants documented yet.
Reference specifications
- Brand
- Seiko
- Model
- Chronograph
- Reference
- 6139-6040
- Production
- c. 1972–c. 1976
Specs shared by all variants. Variant pages show where a variant differs.